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Problems Faced during the Footing in Black cotton soil

Black cotton soil Excavation - case study - Problems Faced during the Footing in clay soil- Structural Design foundation structure- Design Consortium

Problems Faced during the Footing in Black cotton soil

Introduction To Black cotton soil

Black cotton soils and other expansive soils have typical characteristics of shrinkage and swelling due to moisture movement through them. Black cotton soils and other expansive soils are dangerous due to their shrinkage and swelling characteristics.

Issues and Problems
  • Where the depth of clay layer is large, the foundation should be prevented from coming in contact with the soil. In addition to this, The property of the soil as per reports have very poor bearing capacity, ranging from 5 t/m2 to 10 t/m2.
Suggestions

Excavatiion can be done wider and deeper foundation trench and interposing layer of sand around and beneath the footing.

The foundation should be taken at Ieast 50 cm lower than the depth of moisture movement.

The foundations should be constructed during dry season. Also suilable plinth protection around the external wall should be made on the ground surface, with its slope away from the wall, so that moisture does not penetrate the foundation during rainy season.

Nature of Project: Basement+ground+12 Upper floors.

Location : Gulbarga

Architect : Valfar

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By designconsortium In Case Study Posted May 19, 2015

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